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Finding the Fourth Proportional to 353.73, 530.11 and 158.79

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Solution

The fourth proportional to 353.73, 530.11 and 158.79 is: 237.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.73 : 530.11 = 158.79 : x
  2. Step 2: Convert to fraction form
    353.73/530.11 = 158.79/x
  3. Step 3: Cross multiply
    353.73x = 530.11 × 158.79
  4. Step 4: Simplify right side
    353.73x = 84,172.72
  5. Step 5: Solve for x
    x = 84,172.72/353.73
  6. Step 6: Final answer
    x = 237.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.